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Keywords: tunnel
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Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-015
... Characterization displacement Finland Johansson sublevel construction mining step numerical model stress condition tunnel stress measurement international symposium 7th lnt.mational Symposium on ln.Silu Rock Stress May 10..12, 201 B, Tampon, Finland Johansaon & Rusakka ls) ISBN 978-951-758-606-1 ISSN...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-061
... concerning tunneling in difficult rock stress conditions has been started at the Kemi mine. The results from the rock mechanical simulations are compared to the measured displacements. Input data for the rock mechanical simulations are rock stress measurements, Q' classification from drill holes and drifts...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-022
... Reservoir Characterization Raasakka Rock stress elevation tunnel Upstream Oil & Gas borehole excavation steel liner length powerhouse excavation reservoir geomechanics Finland Johansson Symposium stress reduction international symposium groupe qualita inc borehole tf-376-14...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-024
... Atomic Energy Agency in Horonobe, Hokkaido, Japan to verify the technical reliability of geological disposal of high-level radioactive waste and to improve safety-assessment techniques. The project consists of shafts and tunnels to a planned depth of 500 m in sedimentary rock. Construction began...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-060
... Abstract Excavation of long deep tunnels through adverse ground conditions by shielded TBMs requires thorough rock stability analyses to evaluate the possibility of entrapment of the machine. This refers to the assessment of ground pressure and displacement in tunnel walls. For this purpose...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-025
... Abstract Rantatunneli is a project of moving highway 12 into a tunnel in the city of Tampere. The excavation work was finished in the summer 2015. The tunnel will be operational in 2017. The twin tunnel will be the longest highway tunnel in Finland with the length of 2.3 kilometres...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-024
... measurements and the numerical analyses for the mine. 1 INTRODUCTION Skaland mine is a graphite mine located in the Senja island, North of Norway. The excavation profile consists of a complex of service tunnels and several production tunnels at level 25 and level 45 m.a.s.l (above sea level). The location...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-004
... ABSTRACT: Stability and potential failure mode of tunnels and underground rock caverns is directly related to the magnitude and orientation of the in-situ rock stress. In some cases, the high horizontal in-situ stress is essential in maintaining cavern stability, whilst in other cases the high...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-025
... strain energy, resource exploitation and tunnel excavation process, the secondary stress field formation due to internal stress adjustments in rock mass, generated stress concentration near the tunnel wall. Upstream Oil & Gas hard rock underground rock cavern geostress structural geology...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-055
...Rock Stress and Earthquakes Xie (ed.) © 2010 Taylor & Francis Group, London, ISBN 978-0-415-60165-8 Estimation of in-situ stress state at the maximum depth of the Jinping tunnels, China C.Q. Zhang, X.T. Feng, H. Zhou State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-065
... ABSTRACT: This paper presents a case study of a deep-buried underground tunnel project with the buried depth of 1000 m in south-western China. Both the magnitude and direction of the geo-stress were determined through the field measurement. The stress distribution law of the tunnel...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-051
...Rock Stress and Earthquakes Xie (ed.) © 2010 Taylor & Francis Group, London, ISBN 978-0-415-60165-8 Features of in situ stress in a crystallized batholith and its influence on the rockbursts of tunnels J.Q. Ma College of Highway, Chang an University, Xi an, China ABSTRACT: During the excavations...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-094
... for the last century. Once it was believed that effects of earthquake on tunnels and underground spaces is not very important and have long been assumed they have the ability to sustain earthquakes with little damage. But due to significant damages in some underground structures for instance the 1995 Kobe...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-001
... Modeling & Simulation Upstream Oil & Gas variability discontinuity perturbation Reservoir Characterization inhomogeneity borehole Hudson rock mass tunnel situ rock stress principal stress stress measurement Magnitude stress state excavation stress variation anisotropy Rock...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-056
... ABSTRACT: To study the relation between stress and rockburst during tunnel excavation at a hydro-power station, in-situ stress measurements are carried out by hydraulic fracturing method. the maximum compression stress and minimum compression stress within the tunnel cross—section are obtained...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-046
... field determination for a long tunnel, hydro-fracturing in-situ stress measurement was conducted in two boreholes drilled in or near faults zones, respectively.The results are presented and compared with the regional stress field. Those results obtained in fault zone of cataclasite rock are found...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-091
... ABSTRACT: It is the key important problems in the world to research on rockburst disaster mechanism and control countermeasure of the deep mining tunnel under high stress conditions. The principal stresses distribution and energy dissipation were analysed according to the cases...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-101
... ABSTRACT: The anisotropic characteristics of stratified rock mass are considered by ubiquitous-joint model. The FLAC3D software is used to analyze the deformation, failure and the displacement of the key monitoring points of a tunnel passing through the stratified rock with different dip...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-096
... ABSTRACT: Excavation induced stress change is a significant and considerable factor to drive the brittle failure in the underground opening. Rockburst, as a type of brittle failure, has became a great threat to the construction of mining, traffic tunnels, hydropower station etc. With Hoek...
Proceedings Papers
Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-063
... ABSTRACT: Therewas a hydropower in the transition zone between Qinghai-Tibet plateau and Sichuan Basin, while excavating the traffic tunnel towards its underground structure at about 631m horizontal depth, many rock burst happened at right arch, and the hydraulic fracturing three dimensional...
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